The Professional Bull Riders’ Unleash The Beast Tour (U.S. Border Patrol Invitational – Duluth) is the premier series of the PBR. Featuring the top 35 Professional Bull Riders going head-to-head with the fiercest bulls in the country. The PBR will bring two days of high-energy sound, lighting, special effects and edge-of-your-seat action that fans have come to expect from the world leader in the sport of bull riding.